This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

China's beehive-shaped pyramids house the remains of a lost kingdom.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

A natural arch offers panoramic views of Yangshuo's karst hills.

A small 12th-century temple surrounded by waters believed to have curative properties.

Khmer Rouge's high security prison.

One of the biggest markets in Asia, under one of the continent's largest domes.

A battle between nature and architecture in the Cambodian jungle.

Hoax, mistake, or evidence of dinosaurs in human times?

The hallucinogenic center of the ancient world.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

Three floors above a 2,000-year-old royal tomb is a rare collection of ancient porcelain pillows.

The city's oldest Chinese restaurant offers local history and seriously good food.

This Tibetan and Naxi village's Honey Rose wine bears the mark of 19th-century French missionaries.

One of the word's deepest gorges is also tied to a fantastic legend.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

Although resembling a grand Buddhist temple, this structure is actually the largest mosque in China.

This Parisian café is dedicated to great tea and the art of knitting.

A museum which takes visitors to the côté obscure of Paris.

A mechanized clock where a man fights off a dragon, crab, and rooster.

A wall within the institution displays the names of 13,000 Jews who took refuge in the city during World War II.

This psychedelic tourist trap is a leisurely descent into madness.

An out-of-place slice of France, smack in the middle of Shanghai.